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Finding the Fourth Proportional to 318,452.76, 439,471.80 and 175,220.40

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Solution

The fourth proportional to 318,452.76, 439,471.80 and 175,220.40 is: 241,808.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,452.76 : 439,471.80 = 175,220.40 : x
  2. Step 2: Convert to fraction form
    318,452.76/439,471.80 = 175,220.40/x
  3. Step 3: Cross multiply
    318,452.76x = 439,471.80 × 175,220.40
  4. Step 4: Simplify right side
    318,452.76x = 77,004,424,584.72
  5. Step 5: Solve for x
    x = 77,004,424,584.72/318,452.76
  6. Step 6: Final answer
    x = 241,808.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.